Question about LG Televison & Video

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After watching a show for about 20-30 minutes the tv starts turning itself off and on at a very rapid pace. We have to unplug it and let it rest. when we plug it back in the process starts all over. I know the LG 42 Plasma has 3 boards inside and we changed one them last year due to no picture.

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  • sheshe1014 Apr 20, 2009

    The settings for timers are all set to "OFF" so that is not the issue. We were able to watch a show yesterday for a full hour then the screen went black and your could hear the tv clicking and clacking like it was trying to turn off and on repeatedly.

  • sheshe1014 Apr 22, 2009

    Unfortunately it is no longer under warranty. When it starts the problem the screen will all of a sudden go black and the clicking will start. Sometimes it will click until it comes back on. sometimes we just turn it off and wait a while before restarting. I can order the part and change it myself if I knew what part. LG referred me to a repair shop that will charge $50 bucks just to take it in and they are 30 minutes away.

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Hi,
You have a bad solder joint/joints in the TV. A modern TV has hundreds of solder joints that are made by machine during the manufacturing process.

Over time, some of the joints heat up and then cool as you switch the TV on and off. Some become brittle and break.

This has happened to you. When you wait for the TV to cool down or whack the TV the joint should 'makes' the circuit and the TV works for a while again till the Circuit heats up again.

You are going to have to have a tech check it out and track down the bad joint. It is probably in either the power supply or horizontal deflection circuit.

Regards,
Srinivas

Posted on Apr 22, 2009

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Based on the problem that you have stated, there's a defective relay inside your Plasma. You need to bring your Plasma to the Service Center for repair if it's still under warranty.

Posted on Apr 20, 2009

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HI,

Please check the manual and then for the auto timmer off/On option. I am sure the auto timer is set to a particular time for example 30 mins or 60 mins. Please change that to 00 mins and the TV should keep working without shutting off.

Thanks

Posted on Apr 18, 2009

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